Method for establishing vehicle identification, speed and conditions of visibility

ABSTRACT

A method is provided for producing a photographic record showing the identification of a moving vehicle, its speed, conditions of visibility, date and time. Conditions of visibility are established by periodically making a first photographic record of a target at a selected location along a highway. In one embodiment, identification and speed are established in a second photographic record by simultaneously photographing a vehicle moving along the highway in the vicinity of the target and a radar speed meter indicating the speed of the photographed vehicle. In a second embodiment, identification and speed are established by taking two pictures with the same photographic means of the identical portion of a moving vehicle in the vicinity of the target at a known time interval in order to make up a second photographic record, and measuring the relative sizes of the image of the identical portion of the vehicle in the two pictures; and thereafter calculating the speed of the vehicle by interrelating the time interval and vehicle image sizes with the image size of an object in a picture taken by said photographic means located at a known distance from the object, the object having an actual dimension corresponding to an actual dimension of the portion of the moving vehicle appearing in the second photographic record. The first and second embodiments for establishing identification and speed can be combined for purposes of corroborating the speed of the moving vehicle. Date and time are established by simultaneously photographing in all exposures making up the first and second photographic records date and time means showing the date and time at which the exposures are made.

United States Patent [191 Abel] [4 1 Jan. 29, 1974 METHOD FORESTABLISHING VEHICLE IDENTIFICATION, SPEED AND CONDITIONS OF VISIBILITY[76] Inventor: Frank Abell, 954 W. Hyde Road Blvd., Inglewood, Calif.90302 [22] Filed: Dec. 14, 1970 [21] Appl. No.: 97,588

Related US. Application Data [63] Continuation-impart of Ser. No.793,461, Jan. 23,

1969, abandoned.

3,l48,0l5 9/1964 Weaver 346/107 VP Primary Examiner-John M. HoranAttorney, Agent, or F irm-Donald Diamond [5 7] ABSTRACT A method isprovided for producing a photographic record showing the identificationof a moving vehicle, its speed, conditions of visibility, date and time.Conditions of visibility are established by periodically making a firstphotographic record of a target at a selected location along a highway.In one embodiment, identification and speed are established in a secondphotographic record by simultaneously photographing a vehicle movingalong the highway in the vicinity of the target and a radar speed meterindicating the speed of the photographed vehicle. In a secondembodiment, identification and speed are established by taking twopictures with the same photographic means of the identical portion of amoving vehicle in the vicinity of the target at a known time interval inorder to make up a second photographic record, and measuring therelative sizes of the image of the identical portion of the vehicle inthe two pictures; and thereafter calculating the speed of the vehicle byinterrelating the time interval and vehicle image sizes with the imagesize of an object in a picture taken by said photographic means locatedat a known distance from the object, the object having an actualdimension corresponding to an actual dimension of the portion of themoving vehicle appearing in the second photographic record. The firstand second embodiments for establishing identification and speed can becombined for purposes of corroborating the speed of the moving vehicle.Date and time are established by simultaneously photographing in allexposures making up the first and second photographic records date andtime means showing the date and time at which the exposures are made.

4 Claims, 5 Drawing Figures PATENTH] JAN 2 9 I974 I NVENTOR. .F/PAA/KABELL Arron/5y METHOD FOR ESTABLISHING VEHICLE IDENTIFICATION, SPEED ANDCONDITIONS OF VISIBILITY CROSS-REFERENCE TO RELATED APPLICATION Thisapplication is a continuation-in-part of US. Patent Application Ser. No.793,461, filed on Jan. 23, 1969, now abandoned and entitled Method ofConducting a Traffic Survey and Record Thereof."

BACKGROUND OF THE INVENTION The present invention relates generally tosurveys of vehicular traffic on highways; and more especially to aprocedure for establishing accurately the speed of a vehicle underconditions of reduced visibility, as may be encountered at night or infog or under a combination of these conditions.

With the current building of expressways and the higher speeds ofautomobile and truck travel, the problems of unsafe driving and thedangers of overdriving visibility are of increasing seriousness.

Trucking companies and owners of commercial vehicles often have surveysconducted of truck traffic on highways for various purposes. Generally,this is done to check on driver performance, observation of laws andlocal ordinances, compliance with company rules, safe driving habits,and other traffic characteristics. A survey of this character is usuallymade by an independent observer in order to avoid any prejudice for oragainst the truck driver; but the observer must be able to producereliable proof of the conditions observed. The latter is particularlyimportant in the event that the survey is designed to disclose anyimproper or unsafe operating conditions observed.

One situation of interest is excessive vehicle speed at night or infoggy weather when visibility is reduced from daylight or idealconditions. Because trucks are attempting to keep on a pre-set schedule,particularly if it is a long haul, drivers tend to maintain the fastestspeed possible. If the schedule is based on the maximum speed possibleunder daylight or safe driving conditions, a driver is inclined toignore the extra hazard involved in driving at the same speed in fog orat night and to maintain a higher speed than is safe under suchconditions.

Especially when a report adverse to a particular driver or vehicle ismade, it is necessary to produce a tangible record in order to supportthe findings or conclusions made. A visible, tangible record, ifproperly made, is impartial evidence and places no reliance on opinionsor imperfect recollections of others as to what was seen or observed ata particular time in the past. Such a record may also be legal evidenceand serve as a basis for traffic law enforcement. Obviously, a desirabletype of record for this purpose is a photographic one.

PRIOR ART In the prior art, US Pat. No. 3,206,748 Miller, entitledVehicle Speed Recording Apparatus is directed to the combination ofradar means and photographic means for automatically detecting the speedof a moving vehicle and photographing the vehicle along with indiciaindicating speed, time and date so as to provide pictorial evidence of atraffic violation. Thus, the photographic record produced by theapparatus of Miller shows a vehicle, its speed, time and date, togetherwith the surrounding environment within the range of the photographicinstrument.

It would be advantageous to provide a method for producing aphotographic record showing the identification of a moving vehicle, itsspeed, date and time under conditions of reduced visibility, as may beencountered at night and/or in fog, and which defnitively setsdefinitively conditions of visibility at the time the photographicexposures of the moving vehicle are made. Also, while radar speed metersare capable of high accuracy, they are not always entirely consistent orreliable, and, accordingly, it would be desirable to providephotographic means independent of radar for determining speed and forcorroborating the reading of the radar speed meter.

OBJECTS An object of this invention is to provide a new and improvedmethod for producing a photographic record showing identification of amoving vehicle, its speed, date, time and conditions of visibility.

Another object of this invention is to provide a photographic method ofthe character described wherein vehicle identification is establishedunder conditions of reduced visibility by recording an image of aselected vehicle with photographic means equipped with infraredsensitive film.

A further object of this invention is to provide a method of thecharacter described wherein conditions of visibility are established byrecording with photographic means equipped with panchromatic film animage ofa target or target series located at a known distance from thephotographic means.

A still further object of this invention is to provide a photographicmethod for determining vehicle speed which can be used independent ofradar or together with radar to corroborate the reading of the radarspeed meter.

SUMMARY OF THE lNVENTION These objects of the invention, as well asothers not specifically mentioned, have been achieved by providing amethod for establishing vehicle identification, speed and conditions ofvisibility that includes periodically making a first photographic recordof visibility existing at a selected location along a highway and makinga second photographic record, within the time span of the making of thefirst photographic record, of the identity and speed of a particularvehicle moving on the highway in the vicinity of said selected location.The record of visibility is typically made by photographing anilluminated target at a known distance from a camera with lighting ofknown value which is comparable to the illumination provided by theheadlights of a vehicle. The record of identification and speed is made,in one embodiment, by simultaneously photographing a moving vehicle inthe vicinity of the target and a radar speed meter indicating the speedof the photographed vehicle. In a second embodiment, the record ofidentification and speed is made by taking a series of at least twopictures, with the same photographic means, of the identical portion ofthe moving vehicle in the vicinity of the target at a known timeinterval and measuring the relative sizes of the image of the identicalportion of the vehicle in two pictures and thereafter calculatingvehicle speed by interrelating the time interval and vehicle image sizeswith the image size of an object in a picture taken by said photographicmeans located at a known distance from the object, the object having anactual dimension corresponding to an actual dimension of the portion ofthe vehicle appearing in the twopicture record. A record can be obtainedwhich is corroborative with respect to the speed of the moving vehicleby simultaneously photographing in the second embodiment a picture of aradar speed meter indicating the speed of the photographed vehicle. Dateand time are established by simultaneously photographing date and timemeans on exposures of the target and the moving vehicle.

The first and second photographic records can be made with two differentcameras at substantially the same location or a single instrument suchas a magazine loading camera can be used. The visibility record is madewith ordinary panchromatic film in order to give a more faithfulrendition of what is visible to the human eye, while the secondphotographic record is made with film sensitive to the infrared in orderthat useful photographs can be taken under conditions which impair thetransmission of visible light.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be betterunderstood by reference to the following description, and to the annexeddrawing, in which:

FIG. 1 is a diagrammatic plan of a short section of highway with avehicle moving thereon, showing the relative location of two cameras,radar, illuminating means and the targets to be photographed toestablish visibility.

FIG. 2 is a diagrammatic plan similar to FIG. 1 showing a single,magazine loading camera as the photographic means.

FIG. 3 is a photographic record showing in a first print a picture ofatruck, a radar speed meter, date and time and showing in a second printa picture of a target series, a speedometer, date and time.

FIG. 4 is a photographic record showing in the upper two prints,sequential pictures ofa moving vehicle, date and time from which speedof the vehicle can be calculated and showing in the lower print apicture of a target series, date and time. FIG. 5 is a photographicrecord similar to FIG. 4 and includes a picture of a radar speed meterin all photographs indicating the speed of the photographed vehicle.

DESCRIPTION OF A PREFERRED EMBODIMENT Referring now to the drawing, andparticularly to FIG. 1, there is shown schematically the arrangement ofequipment involved and its relationship to the highway. A short sectionof highway is indicated generally at with a truck 12 moving therealongfrom right to left of the figure. Adjacent one side of highway 10 at aposition providing safety for the camera operators but close enough tothe highway to provide a clear view of traffic on the highway, arelocated two cameras 14 and 15. Close by is radar equipment indicatedgenerally at 16 in position to make a determination of the speed of avehicle on the highway within the range of camera 15.

Cameras 14 and are maintained at a relatively fixed position since, aswill become apparent from further description, certain relationshipsmust exist between the exposures taken by the cameras. The cameraequipment may generally be classified as portable; but

it is immaterial whether it is operated from a stationary vehicle orremoved therefrom and supported on the ground. Preferably, cameras 14and 15 are substantially side-by-side; but it is within the scope of theinvention, as will become apparent, to space them farther apart thanindicated in FIG. 1.

Although two cameras are shown in FIG. 1, equally good results areobtained when a single, magazine loading camera 58 is used as thephotographic means as illustrated in FIG. 2.

At one side of the highway 10, there is located a series of targets 18,19 and 20 at fixed and known distances from the photographic equipment.The targets are typically but not necessarily at the side of the road,but no particular location is required except that they can indicate thenecessary visibility.

It is preferred to use a series of targets as indicated in order toobtain greater flexibility or information in the final photographicrecord by indicating gradations or changes in visibility. However, it iswithin the scope of the present invention to use but a single targetlocated at a known distance, such as a distance from the camera equal tothe maximum safe range of visibility available to a driver whentravelling at the safe legal speed along the section of highway chosenfor observation. More specifically, the distance between the singletarget and the camera would be equal to the stopping distance requiredfor the vehicle at the maximum legal speed plus the distance travelledby the vehicle during the reaction time of the driver, which reactiontime may be a more or less arbitrarily established fraction of a second.Also, it should be noted that the distance from the camera to the targetcan be verified by computation if the size of the target and the focallength of the lens of the camera are known.

Cameras 14 and 15 are motion picture cameras which have been modifiedfor this particular type of service. Generally speaking, they are set toexpose a single frame of film each time the shutter mechanism isactuated instead of a series of frames as is normal with motionpictures. In addition, they are modified to include on each frame offilm an image of one or more other instruments, such as date means, astopwatch, a speedometer, an odometer, or the speed meter of radar 16.The present invention is not concerned with the precise constructions ofthese cameras and consequently they are not shown in detail; but fortypical constructions, reference may be had to my earlier U.S. Pat. Nos.2,250,442, issued July 20, 1941, and U.S. Pat. No. 2,871,088, issuedJan. 27, 1959.

One step of the present invention is to photograph the target ortargets. When there are three targets 18, 19 and 20, they appear as inthe lower prints 40, 42 and 44 of FIGS. 3, 4 and 5. The advantage of aseries of targets is that a better evaluation of visibility isestablished by showing in the picture how far from the camera a targetis visible. Photographs of the target or targets are repeated atsuitable intervals of time, the intervals being sufficiently frequent toshow changes in visibility conditions. Assuming a foggy condition, ifthe visibility is relatively static, pictures of the targets atintervals of IS to 30 minutes, for example, may be adequate to establishthat a fog of certain density has settled over the highway 10 and thatit has continued without noticeable change for the length of timecovered by the series of photographs of the targets.

On the other hand, if the fog is changing in density so that visibilityis increasing or decreasing, then the intervals between successiveexposures should be reduced accordingly. Under these conditions, theintervals might be IO minutes or even reduced to only 5 minutes. In anycase, the intervals between successive exposures are governed by thevisibility and any changes in it; and the time intervals are selected tobe short enough to indicate the continued existence of a given degree ofvisibility between two successive exposures of the target series.

The photographic means used in making the photographic record maycomprise two cameras, 14 and 15, as shown in FIG. 1, or a single,magazine loading camera 58 as shown in FIG. 2. The pictures of theroadside targets are designed to make a photographic record ofvisibility existing at a particular location along the highway and forthis purpose the conditions recorded should approximate as closely aspossible visibility to the human eye. This is accomplished with accuracyby using ordinary panchromatic film in, for example, camera 14 of FIG. 1or by using a cartridge containing panchromatic film in the magazineloading camera 58 shown in FIG. 2. Illumination of the targets iscontrolled to duplicate conditions existing for the driver. At night orin fog, it is preferably equal to the illumination afforded by vehicleheadlights on low beam, as this is a minimum or limiting condition.

Illumination of the target is effected by positioning illuminating means60 about 5 feet in front of the photographic means, or at that distancein front of the photographic means which is equivalent to the distancebetween the headlights of a vehicle and the drivers seat. The result isan accurate portrayal of what a driver can see from a vehicle. Ofcourse, when the photographic equipment is mounted on an automobile, theheadlights of the automobile can be used to illuminate the targetseries.

In the other step of the method herein described, a second photographicrecord is made to establish the identity and speed of a selected vehiclemoving along the highway. The second photographic record is made usingfilm sensitive to infrared, in order to obtain a resultant pictureproducing a visible image in spite of the presence of fog or otherconditions producing impaired visibility. When the photographic meanscomprises two cameras shown in FIG. I, then one camera as, for example,camera 15 will be equipped with infrared sensitive film and the secondcamera 14 will be equipped with panchromatic film. However, when amagazine loading camera such as that shown in FIG..2 is used as thephotographic means, then a cartridge containing infrared sensitive filmis inserted into the camera for making the second photographic recordand is replaced with a cartridge containing panchromatic film for makingthe first photo graphic record. For the purposes involved here, thesecond photographic record is made under visibility conditions which areportrayed by the exposures made on panchromatic film. Consequently, thesecond record made on infrared sensitive film must be made sufficientlyclose in time and space to the record made on panchromatic film thatthere is a known definite correlation between the visibility recorded inthe first record and the conditions under which the second record ismade. When a magazine loading camera is used, the lens setting should beadjusted to accomodate the particular film being used.

In one aspect of this invention, identification and speed of a movingvehicle are established in a photographic record such as that shown inthe upper photographic print 46 of FIG. 3 by simultaneouslyphotographing the vehicle and a radar speed meter indicating the speedof the photographed vehicle. Speed is determined by a radar installation16 which. by reflection of a radar beam from the moving vehicle,produces an indication of speed on the speed meter. The image of thespeed meter is recorded and is shown in FIG. 3 as an image 28 around theimage of a timepiece 24.

In a second aspect of this invention, identification and speed of theselected vehicle are established photographically by taking a series ofat least two pictures, with the same photographic means, at a known timeinterval of the identical portion of the moving vehicle in order to makeup a second photographic record as shown in the two upper prints in FIG.4; measuring the relative sizes of the identical portion of the vehiclein two pictures; and calculating the speed of the vehicle byinterrelating the time interval and vehicle image sizes with the imagesize of an object in a picture taken by said photographic means locatedat a known distance from the object, the object having an actualdimension corresponding to an actual dimension of the portion of themoving vehicle appearing in the second photographic record.

The photographic record of identification and speed as shown in FIG. 4comprises two closely-spaced pictures 21 and 22 of the same vehicle. Thefirst is taken shortly after the vehicle moves into the range of thecamera and the second is taken after the vehicle has moved on down thehighway. Of course, a third and succeeding exposure can be made of thesame vehicle if desired; but under conditions of lowered visibility, anopportunity may be afforded for only a series of two exposures; and tworesultant pictures are sufficient for the record.

The two exposures include indentical parts of the vehicle. This is doneso that the size ofa given portion of the vehicle can be measured on thetwo prints and the distance travelled by the vehicle between the twoexposures can be calculated from the change in size. For example,commercial trucks and trailers have a standard maximum body width. Bycomparison of the recorded dimension of the body width in the successivepictures 21 and 22 with the image size of an object having an actualdimension corresponding to body width in a picture taken by photographicmeans located at a known distance from the object, the focal length ofthe lens in the photographic means for all pictures being the same, itis possible to calculate the distance travelled in the interval betweenthe two exposures. Thus, if distance from the camera and image size areknown for an object having a particular dimension, then in anotherpicture of that object its distance from the camera can be calculatedfrom its image size, since the image sizes of the particular dimensionin the two pictures are inversely proportional to the distance of theobject from the photographic means. If the visibility is sufficientlyreduced that the body of the truck cannot be seen in the secondexposure, resort may be had to other dimensions. For example, inexposure 21, in FIG. 4, the distance x indicates the distance betweentwo lights carried at the top of the truck body. In exposure 22 thedistance between the two lights is reduced to the dimension Y.

The first exposure from which picture 21 is printed is made with aninfrared flash bulb, electronic flash gun or similar source of infraredillumination. The truck is close and a picture of the body is obtainedthat reveals a name, number or other identification. The second exposuremay be made without a flash source; but it is useful as it will recordthe lights on the rear of the vehicle. For this purpose, it is betternot to use a flash or other added illumination, and the lights providedesired dimensions.

The time interval between the two successive exposures must be known inorder to calculate vehicle speed. This time interval may be establishedor determined in various ways. For example, an automatic interval timermay make the second exposure at a known fixed time after the first one,for example, 2 seconds.

However, it is preferred to include in both the exposures 21 and 22 arecord of the time by photographing a suitable timepiece, for example, astopwatch having a sweep second hand. The image of the stopwatch isshown at 24 with the sweep second hand at 25. The hour and minute handsindicate the time of day at which the photographic record is made. Theremay also be added a legend 26 showing the month, day and year foradditional identification purposes.

Without going into detail, it will be apparent that if the distancetravelled by the vehicle between exposures 21 and 22 can be calculated,then from knowledge of the time interval between exposures 21 and 22 asrevealed by the movement of sweep hand 25, the actual road speed of thevehicle can be calculated. A stopwatch is sufficiently accurate when theexposure interval is of the order of 2 seconds or more. When theinterval must be reduced to less than 2 seconds, an electronic timer 62displaying fractions down to onehundredths of a second, such as thatshown in connection with the timepiece in print 48, should be used. Thetime and date means and the radar speed meter may be recorded at anyposition of the film.

Since one might challenge the conclusion drawn from a record of merelythe timepiece showing the interval between the two exposures, and sinceradar readings, while capable of high accuracy, are not always entirelyconsistent or reliable and, therefore, subject to challenge, it isadvantageous to combine the radar method and photographic method fordetermining speed by including a picture in the photographic method of aradar speed meter indicating the speed of the photographed vehicle asshown in FIG. 5. Therefore, when the speed indicated on meter 28confirms the result obtained from calculations made using image sizemeasurements and time from timepiece 24 in prints 48 and 50 of FIG. 5,there is confirmation and corroboration of the speed which substantiatesthe correctness of the conclusions reached. Hence the preference for twoexposures to make the second photographic record. I

It will be apparent that the first photographic record showingconditions of visibility, the lower prints 40, 42 and 44 in FIGS. 3, 4and 5, should also include a timepiece 24 as well as day, month and yearindicia 26 in order to show correlation between the first and secondphotographic records. It may also be desirable to indicate somecorrelation in location; and this can be accomplished by including inthe first photographic record an odometer reading 32 as shown in print40 in FIG. 3. Since the odometer is associated with a speedometer, print40 also includes a picture of a speedometer 64 in which the dial is at 0because the vehicle is stationery when the photographs are taken. Byrecording the odometer reading at a known point of departure, forexample, a garage, and then later at the point where the vehicles stopin order to set up the photographic equipment, the location at which thepictures are taken can be established. The continued constant reading ofthe odometer in the first photographic record indicates that allpictures are taken at the same place and are not taken at other moreremote locations. Other means of establishing identity of location ofthe exposures for the two records can include terrain features,buildings. bridges, and other distinctive and recognizable butnon-movable objects.

While in the foregoing drawing and description there has been shown anddescribed the preferred embodiment of this invention, it will beunderstood, of course, that minor changes may be made without departingfrom the spirit and scope of the invention as claimed.

I claim:

1. A method for providing a photographic record showing theidentification of a vehicle, its speed and conditions of visibilitywhich comprises:

positioning photographic means along a selected section of a highway;

locating at least one target along said highway, said target beingspaced at a known distance from said photographic means;

periodically making a first photographic record of said target with saidphotographic means on panchromatic film while said target issimultaneously illuminated by lighting substantially equivalent to theheadlights of a vehicle in order to show conditions of visibility atsaid selected section of highway;

making a second photographic record with said photographic means oninfrared sensitive film, showing the identification and speed of aselected vehicle moving on said highway in the vicinity of saidtarsimultaneously photographing in all exposures making up the first andsecond photographic records a timepiece to show the time of day at whichsuch exposures are made; and

correlating said first and second photographic records with respect tothe time at which such are made whereby a photographic record isestablished showing vehicle identification, speed and conditions ofvisibility.

2. A method according to claim 1 wherein the preparation of the secondphotographic record includes the step of simultaneously photographingsaid moving vehicle and a radar speed meter indicating the speed of thephotographed vehicle.

3. A method according to claim 1 wherein identification and speed of themoving vehicle are determined by:

taking a series of at least two pictures, with the same photographicmeans, at a known time interval of the identical portion of the movingvehicle in order to make up a second photographic record; measuring therelative sizes of the image of the identical portion of the vehicle intwo pictures; and calculating the speed of the vehicle by interrelatingthe time interval and vehicle image sizes with the image size of anobject in a picture taken by said photographic means located at a knowndistance from the object, said object having an actual di mensioncorresponding to an actual dimension of the portion of the movingvehicle appearing in the second photographic record.

4. A method according to claim 3 which includes the

1. A method for providing a photographic record showing theidentification of a vehicle, its speed and conditions of visibilitywhich comprises: positioning photographic means along a selected sectionof a highway; locating at least one target along said highway, saidtarget being spaced at a known distance from said photographic means;periodically making a first photographic record of said target with saidphotographic means on panchromatic film while said target issimultaneously illuminated by lighting substantially equivalent to theheadlights of a vehicle in order to show conditions of visibility atsaid selected section of highway; making a second photographic recordwith said photographic means on infrared sensitive film, showing theidentification and speed of a selected vehicle moving on said highway inthe vicinity of said target; simultaneously photographing in allexposures making up the first and second photographic Records atimepiece to show the time of day at which such exposures are made; andcorrelating said first and second photographic records with respect tothe time at which such are made whereby a photographic record isestablished showing vehicle identification, speed and conditions ofvisibility.
 2. A method according to claim 1 wherein the preparation ofthe second photographic record includes the step of simultaneouslyphotographing said moving vehicle and a radar speed meter indicating thespeed of the photographed vehicle.
 3. A method according to claim 1wherein identification and speed of the moving vehicle are determinedby: taking a series of at least two pictures, with the same photographicmeans, at a known time interval of the identical portion of the movingvehicle in order to make up a second photographic record; measuring therelative sizes of the image of the identical portion of the vehicle intwo pictures; and calculating the speed of the vehicle by interrelatingthe time interval and vehicle image sizes with the image size of anobject in a picture taken by said photographic means located at a knowndistance from the object, said object having an actual dimensioncorresponding to an actual dimension of the portion of the movingvehicle appearing in the second photographic record.
 4. A methodaccording to claim 3 which includes the step of simultaneouslyphotographing in all exposures making up the second photographic recorda picture of radar speed meter indicating the speed of the photographedvehicle.